Yang, Yiyuan, Guodong Long, Qinghua Lu, Liming Zhu, and Jing Jiang. “Bi-Level Personalization for Federated Foundation Models: A Task-Vector Aggregation Approach”. Proceedings of the AAAI Conference on Artificial Intelligence 40, no. 33 (March 14, 2026): 27702–27710. Accessed May 19, 2026. https://ojs.aaai.org/index.php/AAAI/article/view/39991.